:root {
  --ink: #0b1220;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #e5e7eb;
  --surface: #ffffff;
  --surface-2: #f6f7fb;
  --accent: #4f46e5;
  --accent-strong: #4338ca;
  --accent-soft: #eef2ff;
  --good: #059669;
  --good-soft: #ecfdf5;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --dark: #0b1220;
  --dark-2: #131c2e;
  --dark-line: #24304a;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 16px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--surface); line-height: 1.6; font-size: 16px; }
img, svg { display: block; }
a { color: var(--accent); }
a:hover { color: var(--accent-strong); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,0.92); backdrop-filter: saturate(180%) blur(10px); -webkit-backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand-mark { width: 30px; height: 30px; border-radius: 8px; background: var(--ink); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; letter-spacing: 0; }
.brand small { color: var(--muted); font-weight: 500; font-size: 14px; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 15px; }
.nav a { color: var(--ink-soft); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav .btn-sm { color: #fff; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; padding: 13px 22px; border-radius: 12px; border: 1px solid var(--accent); }
.btn:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface-2); color: var(--ink); border-color: var(--line); }
.btn-sm { padding: 8px 14px; border-radius: 10px; font-size: 14px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Hero */
.hero { padding: 84px 0 76px; background: radial-gradient(1100px 500px at 85% -10%, #e9ebff 0%, rgba(233,235,255,0) 60%), var(--surface); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: 1fr 1.08fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.hero h1 { font-size: clamp(34px, 3.7vw, 48px); line-height: 1.08; letter-spacing: -0.03em; margin: 16px 0 20px; }
.hero h1 span { display: block; }
.hero p.sub { font-size: 18px; color: var(--ink-soft); margin: 0 0 30px; max-width: 540px; }
.hero-points { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 10px; color: var(--ink-soft); font-size: 15px; }
.hero-points li { display: flex; gap: 10px; align-items: flex-start; }
.check { flex: none; width: 20px; height: 20px; border-radius: 50%; background: var(--good-soft); color: var(--good); display: inline-flex; align-items: center; justify-content: center; margin-top: 2px; }

/* Sample output window */
.window { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 30px 60px -30px rgba(15, 23, 42, 0.35), 0 8px 20px -10px rgba(15, 23, 42, 0.12); overflow: hidden; }
.window-bar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--surface-2); font-size: 13px; color: var(--muted); }
.dots { display: flex; gap: 6px; }
.dots span { width: 10px; height: 10px; border-radius: 50%; background: #d7dbe3; }
.pipeline { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px 16px 6px; }
.chip { font-size: 12px; font-weight: 600; padding: 5px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-strong); }
.chip.done { background: var(--good-soft); color: var(--good); }
.table-wrap { overflow-x: auto; }
table.sample { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 470px; }
table.sample th { text-align: left; font-weight: 600; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.sample td { padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; color: var(--ink-soft); }
table.sample td strong { color: var(--ink); font-weight: 600; }
.tag { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 3px 8px; border-radius: 6px; }
.tag.ok { background: var(--good-soft); color: var(--good); }
.tag.sig { background: var(--warn-soft); color: var(--warn); }
.window-foot { padding: 10px 16px 14px; font-size: 12px; color: var(--muted); }

/* Sections */
section { padding: 88px 0; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head .eyebrow { margin-bottom: 10px; }
h2 { font-size: clamp(28px, 3.2vw, 38px); line-height: 1.15; letter-spacing: -0.025em; margin: 0 0 14px; }
.lead { color: var(--ink-soft); font-size: 17px; margin: 0; }
.alt { background: var(--surface-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* Feature grid */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.icon { width: 42px; height: 42px; border-radius: 12px; background: var(--accent-soft); color: var(--accent-strong); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.feature h3 { font-size: 18px; margin: 0 0 8px; letter-spacing: -0.01em; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* Dark band: signals */
.dark { background: var(--dark); color: #e2e8f0; }
.dark h2 { color: #fff; }
.dark .lead { color: #94a3b8; }
.dark .eyebrow { color: #a5b4fc; }
.dark .eyebrow::before { background: #a5b4fc; }
.signals { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.signal { background: var(--dark-2); border: 1px solid var(--dark-line); border-radius: var(--radius); padding: 22px; }
.signal h3 { color: #fff; font-size: 17px; margin: 0 0 6px; }
.signal p { margin: 0; color: #94a3b8; font-size: 14.5px; }
.signal .k { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #a5b4fc; margin-bottom: 10px; display: block; }

/* Process */
.process { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: step; }
.pstep { position: relative; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.pstep .when { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.pstep h3 { font-size: 17px; margin: 8px 0 8px; }
.pstep p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }

/* Deliverable fields */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; list-style: none; padding: 0; margin: 0; }
.fields li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--ink-soft); padding: 10px 0; border-bottom: 1px dashed var(--line); }
.qa { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.qa h3 { margin: 0 0 12px; font-size: 18px; }
.qa ol { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.qa li { margin: 6px 0; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.plan { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: var(--surface); }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.plan .label { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.plan h3 { font-size: 19px; margin: 6px 0 10px; }
.price { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
.price small { display: block; font-size: 13px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-top: 4px; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; font-size: 14.5px; color: var(--ink-soft); }
.plan ul li { display: flex; gap: 8px; }
.plan ul li::before { content: "\2713"; color: var(--good); font-weight: 700; }
.fine { margin-top: 22px; font-size: 14px; color: var(--muted); }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.principle h3 { font-size: 16.5px; margin: 0 0 6px; }
.principle p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }
.principle .icon { margin-bottom: 12px; }

/* Stack */
.stack { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.stack span { font-size: 14px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-soft); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; background: var(--surface); }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 500; font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 12px 0 0; color: var(--ink-soft); }

/* About */
.details { margin: 26px 0 0; padding: 22px 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-2); }
.details dt { font-weight: 600; }
.details dd { margin: 3px 0 0; color: var(--ink-soft); }

/* CTA band */
.cta { padding: 0 0 96px; }
.cta-box { background: var(--dark); color: #e2e8f0; border-radius: 24px; padding: 52px; display: flex; justify-content: space-between; align-items: center; gap: 28px; flex-wrap: wrap; }
.cta-box h2 { color: #fff; margin: 0 0 8px; }
.cta-box p { margin: 0; color: #94a3b8; max-width: 560px; }
.cta-box .btn { background: #fff; color: var(--ink); border-color: #fff; }
.cta-box .btn:hover { background: #e2e8f0; border-color: #e2e8f0; color: var(--ink); }

/* Policy pages */
.policy { padding: 56px 0 88px; }
.policy h1 { font-size: 38px; letter-spacing: -0.025em; margin: 0 0 6px; }
.policy .updated { color: var(--muted); font-size: 14px; margin: 0 0 34px; }
.policy h2 { font-size: 20px; letter-spacing: -0.01em; margin: 34px 0 8px; }
.policy p, .policy li { color: var(--ink-soft); }
.policy ul { padding-left: 20px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--surface-2); padding: 52px 0 36px; font-size: 14px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.site-footer h4 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: var(--ink-soft); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }
.footer-company p { margin: 10px 0 0; max-width: 360px; }
.footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 980px) {
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 40px; }
  .features, .signals { grid-template-columns: 1fr 1fr; }
  .process, .pricing, .principles { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav a:not(.btn) { display: none; }
  .hero { padding: 56px 0 56px; }
  section { padding: 64px 0; }
  .features, .signals, .process, .pricing, .principles, .fields, .footer-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 34px 26px; }
  .brand small { display: none; }
}